Railroad-car truck



May 5, 1925. M 1,536,139

H. C. PRIEBE RAILROAD GAR TRUCK Filarefi. 12, 1924 2 Sheets-Sheet 1 '6 is a sectional view on line Patented May 5, 1925.

HERMAN C. PRIEBE, OF'BLUE ISLAND, ILLINOIS.

Runaosncaa TRUCK.

Application filed February 12, 1924. Serial No. 892,869.

To all whom it may concern:

Be it known that I, HERMAN C. PRIEBE, a citizen of the United States, residing at Blue Island, in the county of Cook and the State of Illinois, have inyented a certain new and useful Improvement in Railroad- Car Trucks, of which the following is a full, clear, concise, and exact description.

y invention relates to trucks for railroad cars and resides in the employment of U bolts in the region of the truck bolsters and the side frames of the trucks, these U bolts taking part in defining the positions of the bolster sprin s and the locations for the bolster ends. n can-yin out the invention, the bolster guide portions are preferably formed with longitudinal bores through which the sides of the U bolts pass, whereby the U bolts are enabled to perform their functions without altering the general dimensions of the side frame and without interfering with the usual locations of the brake hangers. The invention also resides in an improved arrangement of the truck bolster springs and the forking of the bolster ends into three branches between which the upright bolster guide bars pass, or otherwise forming two passages in each end of the bolster to receive these guide bars.

The invention, in all of its characteristics, will be more fully explained in connection with the accompanying drawings in which Fig. 1 is a side view of a car truck made in accordance with the preferred embodiment of the invention; Fig. 2 is a view taken from beneath the truck as shown in Fig. 1; parts bein shown in section and parts being, remove Fig. 3 is a perspective view of a' lock which is employed between the bases of the U bolts and the lower arch bars in the structure shown in'Figs. 1 and 2; Fig. 4 is a sectional view of a modifica- Lion, taken on line 4+4 of Fig. 6; Fig. 5 is a sectional view on line 5'5 of Fig. 6; Fig. 66 of 4;

ig. 7 is a sectional view on line 7% of Fig. 6; and Fig. 8 is a sectional view line 8-8 of Fig. 6.

Like parts are indicated by similar characters 0 reference throughout the different res.

The truck side frame illustrated in Figs. 1 to3 includes an upper arch bar 1, a lower arch bar 2, and the bolster guide bars 3 and 4, which depend from the upper arch bar and do not extend across the space between the arch bars in the structure shown,

vthough the invention is not to be thus limited. Each side of the truck has such a side frame.

complete construction at one side of the truck, the construction of but one side will be alone described, it being understood that,

and in the general plane, thereof. In the construction of Fig. 1 these springs are seated directly upon the upright U bolt 8 which serves to define the positions of sprin 5 and 7 hasits base below the lower arch fir and its sides passi-v ing through both of the arch bars withwhich the bolt is held in assembly by means of its nuts 9 threaded of the bolt sides. 3, 4 are formed with vertical. bores which are coaxial with the bores of the upright springs 5, 7. The sides of the U bolt are passed through aligned bores of the guide bars and said springs, the U bolt being in the general plane of the truck sideframe; The truck. bolster 10 extends between the sides of the U bolt and is supported by the springs-5, 6 and 7 and has wings 11 at its bottom through which the sides of the bolt pass, these wingsbeing interposed between the bolster guide bars and springs5 and 7 underlying these guide bars. The intermediate upright truck bolster supporting spring 6 and its associate springs 5, 7 are so related that their axes and the axes of the sides of the U bolt are in a common vertical plane that also includes the corresponding side frame. The bolster is guided in its movements by the side portions thereof, which are above the bolster wings 11, and the contiguous bolster guide portions. The sides of the U bolt and the win 11' of the bolster also take part in gui ing the bolster. As the sides of the U bolt pass through the bolster supporting guides, the employment of the U bolt does notinterfere with the normal location of the brake hangers 12, 13 which are carried by the supports 14, 15 that are preferably cast integrally with the bolster guide bars 3, 4. These supports form the subject of another application, Serial No. 692,371, filed February 12, 1924. The brake members 16 and 17 are carried at the lower ends the lower arch bar, and

upon the upper ends The bolster guide. bars.v

As the drawing only illustrates the of the brake hangers to be in normal relation with the wheels 18, 19 that are disposed at the ends of the contiguous side frame and whose axles 20 engage the bearings 21 which are housed within the journal boxes 22 suitably assembled with the side frame.

the structure shown in Figs. 1 and 2 the sides of the U bolt pass through both arch bars and the base of the U bolt underlying the lower arch bar. When this construct-ion is employed a block'23 is preferably interposed between the U bolt base and the bottom arch bar, there being a groove 24 in the bottom of this block and extending longitudinally of the side frame, and receiving the base of the U bolt.

in themodified construction shown most clearly in Fig. 6, the base of the U bolt is located between the arch bars and the sides of the U bolt pass upwardly through the seat 25 for the bolster supporting springs, this geat being supported upon the lower arch ar. The brake hangers 12, 13 in the structure of Fig. 6, are carried by the supports 14, 15 that are integrally cast with the upward continuations 25, 25 of the spring seat 25. In the structure of Fig. 6 the truck bolster notv only extends between the sides of the U bolt and the bolster guide bars 3, 4 that are also integrally formed with the spring seat 25, but has side continuations 10, 10 through which the sides of the U bolt pass and which are sufiiciently spaced apart from the truck bolster portion that extends between the sides of the U bolt to receive the truck bolster guides 3, 4, that are in direct guiding relation with this middle portion of the truck bolster, and also the truck bolster guide bars 3 4 which are carried by and depend from the upper arch bar and are in direct guiding relation with the truck bolster end portions 10, 10

As illustrated in Figffi, the truck bolster guide bars 3, 4' that are carried by the lower arch bar partially embrace the truck bolster guide bars 3 4 so that the guide bars notonly takepart. in guiding the truck bolster in its upright movements but also serve as structural parts of the side frame.

Referring again to the construction shown in Figs. 1 2 and 3, themeans there shown for assembling the journal boxes with the contiguous side frame includes two frame members in the form of U ,bolts, whose bases 26 are received in the grooves 27 that extend transversely through the block 23 and intersect the longitudinal groove 24 in this block. The grooves 27 are just sufliciently deeper than the groove 24 to enable the U bolt bases 26 to be held tightly by the base of the U bolt 8 between this 'U bolt base and the block 23. The symmetrically related pairs of the U bolt sides 28, 29 continue from their U bolt bases longitudinal of the contiguous side frame, of the truck and beneath the same, and beneath the journal boxes 22. One of the sides 28 of each of these underlying U bolts is bent near its end at an angle and passes upwardly through the ears 30 upon the side of the adjacent journal box 22 which is nearer the truck bolster and also through the approached ends of the two arch bars that overlie the journal boxes. The complemental U bolt side 29 of each underlying U bolt is continued below its associate journal box to the opposite side thereof and is bent to pass upwardly through the cars 31 upon this side of such journal box and thence through the approached ends of the arch bars. The bolt nuts 32 are screwed upon the upper ends of the upright portions of the U bolt sides 28, 29 to clamp the arch bars together and also to clamp the journal boxes between the arch bars and the contiguous U bolt sides 28, 29 that thus are in supporting relation to the journal boxes. In the construction described in connection with Figs. 1 to 3 inclusive, it is to be observed that the symmetrically related underlying U bolts that thus take part in assembling the ends of the two a'rch bars and the journal boxes are so shaped and disposed as also to constitute lower members of the corresponding side frame. llhe upwardly bent end portions of these underlying U bolts are spaced apart, longitudinally of the contiguous side frame, as has been said in other words to define with the ends of the arch bars and the horizontal portions of these U bolt sides, spaces to receive the journal boxes.

In the structure shown in Figs. 1 to 3 inclusive, each side frame is further assembled with the truck bolster by a link 33 that engages the T-shaped lug 34 at the mid portion of the bolster and the hook 35 upon the corresponding side frame. In the structure shown in Figs. 4 to 8 links 33 of another form are otherwise employed to assemble the side frames and mid portions of the truck bolsters. The employment of the links 33 and 33"fbrm the subject matter of anothelr. application, \Serial No. 692,370, filed February 12, 1924.

It is obvious that changes may be made without departing from the spirit of my invent-ion.

Having thus described my invention I claim as new and desire'to secure by Letters Patent the following 1. A car truck including the side frames thereof, each having two upright bolster guide bars; a truck bolster extending between said frames and forked into three branches at each end, said guide bars being received between the branches of the bolster. I

2. A car truck including the side frames thereof, each having two upright bolster guide bars; a truck bolster extending between said frames and formed with two passages at each end and that receive said guide bars.

3. A car truck including a side frame; an

upright U bolt assembled with said side frame. and having its base in the plane thereof; and a truck bolster between the sides of the U bolt.

4;. A car truck including aside frame; an upright U bolt assembled with said side frame, and having its base in the plane thereof; a truck bolster between the sides of the U bolt; and truck bolster guide bars carried by the side frame and through which the sides of the U bolt pass.

5. A car truck including a side frame; an upright U bolt assembled with'said side frame and having its base in the plane thereof; a truck bolster between the sides of the U bolt; and truck bolster supporting springs through which the sides of the U bolt pass.

6. A car truck including a side frame;

an upright U" bolt assembled withsaid side frame and having its base in the plane thereof; a truck bolster. between the sides of the U bolt; truck bolster guide bars carried by the side frame :and through which the sides of the U bolt pass; and

truck bolster supporting springs through which the sides of the U bolt pass.

7. A car truck including a side frame; an upright U bolt assembled with said side frame and having its base in the, plane thereof and underlyingthe bottom of the frame; and a seating block between the base of the U bolt and the bottom of the'frame and having a groove in its bottom extending longitudinally of the truck and receiving the-base of the U bolt.

8. A car truck'including a side; frame;

an 'upright U bolt assembled with said side.

frame and havin its base in the plane thereof and under ying the bottom of the frame; 7 and a seating block between the 'an upright U bolt assembled base of the U bolt and the bottom of the frame.

. 9. A car truck including a side frame; an upright U bolt assembled with said side frame; and a truck bolster between the sides of the U bolt.

10. A car truck including a side frame; an upright U bolt assembled with said side frame; a truck bolster between the sides of the U bolt; and truck bolster guide bars carried by the side frame and through which the sides of the U bolt pass.

11. A car truck including a side frame; an upright U bolt assembled with said side frame; a truck bolster between the sides of the U \bolt; and truck bolster supporting springs through which the sides of the U bolt pass.

12. A car truck including a side frame; an upright U bolt assembled with said side frame; a truck bolster between the sides of the U bolt; truck bolster guide bars carried by the side frame and through which the sides of the U bolt pass; and truck bolster supporting springs through which the sides of the U bolt pass.

13. A car truck including a side frame; an upright U bolt assembled with said side frame; and a seating block between the base of the U bolt and the bottom of the frame and having a groove in its bottom extending longitudinally of the truck and receiving the base of the .U bolt.

14. A car truck including a side frame; with said side frame; and a seating block between the base of the U bolt and the bottom of the frame.

"15. A car truck including its side frames; a bolster; truck bolster v frames; and U bolts completing the assem bly of the guide. bars and side frames, said U bolts having their sides extending along the guide bars, the ends of these sides bein clamped into engagement with the side frames. 1 i

In witness whereof, I hereunto subscribe my name. I

HERMAN KC. PRIEBE.

guldebars upon the 

